A simple fix for a BIG problem! Ellipticals that are self generating have a battery which gets charged upon usage. Though the machine is self generating, if it is not in use or hardly used at all, the battery drains out. So you should not let your machine sit for too long. If the battery hits lower than 6v of power, that's when problems begin to occur with your machine. If that is the case with your machine, all you need to do is replace the battery. No tech required on this one! It's very simple to replace!